Question

for a group of 8 students the sum of squares of differences in ranks for maths and stats mark was found to be 50. what is the value of rank correlation coefficient?​

Answer 1

Step-by-step explanation:

Given for a group of 8 students the sum of squares of differences in ranks for maths and stats mark was found to be 50. what is the value of rank correlation coefficient?  

• Here n = 8 and D^2 = 50
• Now we have rank correlation coefficient is given by
•                                                              = 1 – 6 ∑ D^2 / n(n^2 – 1)
•                                                             = 1 – 6 x (50) / 8 (8^2 – 1)
•                                                              = 1 -  300 / 504
•                                                              = 504 – 300 / 504
•                                                               = 204 / 504
•                                                               = 0.40476
• Therefore the value of rank correlation coefficient is 0.40476

Reference link will be

https://brainly.in/question/15320127

Answer 2

Answer:

Step-by-step explanation:

Given for a group of 8 students the sum of squares of differences in ranks for maths and stats mark was found to be 50. what is the value of rank correlation coefficient?  

Here n = 8 and D^2 = 50

Now we have rank correlation coefficient is given by

                                                             = 1 – 6 ∑ D^2 / n(n^2 – 1)

                                                            = 1 – 6 x (50) / 8 (8^2 – 1)

                                                             = 1 -  300 / 504

                                                             = 504 – 300 / 504

                                                              = 204 / 504

                                                              = 0.40476

Therefore the value of rank correlation coefficient is 0.40476